Bump version to 3.13.0-beta-1

Version 3.12.0. Build yui and loader.

Temporarily add `[email protected]` to prevent corrupted zips in 0.4.6

Bump version to 3.11.0

Bump version to 3.11.0pr1

Update io HISTORY.

Bump version to 3.10.2

Build all

Bump version to 3.10.0

Merge branch 'dev-master' into dev-3.x